crwdns2944351:0crwdnd2944351:0Delonghi EC220.CD coffee machine Pump Replacementcrwdnd2944351:0crwdne2944351:0

Thing	Pump
Title	Delonghi EC220.CD coffee machine Pump Replacement
Introduction	***************Work in Progress**************** Before ordering the spares, check that your symptom is not simply a blocked filter or limescale. The instructions for cleaning the filters - particularly the boiler outlet filter under the overhang - can be seen at https://www.manuals.co.uk/delonghi/ec-220cd/manual. The boiler outlet filter requires a flat blade screwdriver on a right angle rachet drive to remove. The EC220 has been around quite a few years, and luckily contains no complex electronics. There are similar models still in production with, I suspect, minor changes. It's relatively easy to replace the pump, providing that you use this guide. I spent several maddening hours before I worked out the right technique. The pump is located in the narrow part of the chassis, tied in with rubber brackets to reduce vibration. Replacing it does involve a complete disassembly, including removing the boiler and un-clicking the plastic sub-chassis inside the lid. It is also possible that the plastic 3-way valve above the pump is faulty. This should be obvious from the noises coming from the pump. Before you start, make sure that the machine is absolutely emptied of water. If it gets over the electrics, it will be very hard to dry out and possibly trip your house electrics when you test it. Water will come out of the boiler when it is removed, so have cloths and sponges handy to mop this up - a surprising amount came out of mine. Make sure that nothing electrical is sitting on the workbench that could be deluged. You'll need a long handled T20 torx security screwdriver - the plug in bits will not work as you need to reach down long and narrow holes. A magnetic version will be useful as the screws are hard to locate properly in reassembly.
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Conclusion	To reassemble your device, follow these instructions in reverse order. Make sure that: (a) the clip on the valve is behind the brass collar, trapping the tube into the valve port. (b) the plastic sub-chassis is completely seated into the plastic housing (you won't find out that you haven't done this properly until you have screwed it all together), (c) the plastic widgets that hold the boiler screws are completely seated into their slots. (d) that there is absolutely no water around the electrics. If there is, hairdryer it until dry, and leave in a warm place overnight to ensure it is dried out. It's best to test the unit outside and to stand back whilst it heats up, in case of any escape of red hot steam. I used a plug-in RCD to ensure that any electrical faults didn't impact the main house supply. Remember to flush the unit through with a couple of litres of water to remove any oil or other contaminants from the system.
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